Home / 12,611.11-17,397.48-8,136.30

Finding the Fourth Proportional to 12,611.11, 17,397.48 and 8,136.30

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Solution

The fourth proportional to 12,611.11, 17,397.48 and 8,136.30 is: 11,224.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.11 : 17,397.48 = 8,136.30 : x
  2. Step 2: Convert to fraction form
    12,611.11/17,397.48 = 8,136.30/x
  3. Step 3: Cross multiply
    12,611.11x = 17,397.48 × 8,136.30
  4. Step 4: Simplify right side
    12,611.11x = 141,551,114.41
  5. Step 5: Solve for x
    x = 141,551,114.41/12,611.11
  6. Step 6: Final answer
    x = 11,224.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.